* {
    box-sizing: border-box;
}

body {
    background: #eee;
    margin: 20px 0;
}

article {
    width: 21cm;
    min-height: 29.7cm;
    background: white;
    margin: 0 auto;
    overflow: auto;
    padding: 1em;
}

p {
    margin: 0.5em 1em;
}

h1 {
    font-size: 24px;
    margin-top: 0;
}
h1,h2,h3{
    margin:0 18px;
}

h4, h5, h6 {
    font-weight: normal;
}

ol, ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

strong {
    font-weight: normal;
    color: #f60;
}

a {
    color: #999;
    text-decoration: none;
    border-bottom: 1px solid;
}

p, li {
    color: #666;
}

strong {
    font-weight: normal;
}